No, not all do. The proportionality constants that change the units will have units themselves.
All numbers are constants.
Variables change, constants do not.
An equation is linear when it contains only variables of degree 1 and constants. ALL linear equations will be of the form: a1x1+a2x2+a3x3+...+anxn=c where an and c are constants.
Constants in the sense you mean are different to mathematical constants. They usually refer to a system in which two values are proportionate and so are of the units associated with the system.
21
No, not all do. The proportionality constants that change the units will have units themselves.
I believe you mean consonants and no there is 23 excluding y as a consonant.
All numbers are constants.
The derivative of all constants is 0.
Symbolic constants are constants that the programmer has decided to give a symbolic name (usually one with a meaning to make it easy to remember) so he does not have to retype the numeric value every time he needs it and risk making an error. Many coding standards require ALL constants to be symbolic constants, even if only used once in the program.
There are 4 constants.
Variables change, constants do not.
Integer constants Character constants Real/floating point constants String constants
Coding constants in c means writing the constants in a certain way that the c language understands.
To eradicate the denominators.
Constants are the what is "set" or "constant" in an equation. They will never change. For example, pi is a constant. It will never change from being 3.14.... All numbers are considered constants.